 
function hd_insertTag(tag) {
var text_to_insert = '%%'+tag+'%%';
hd_insertAtCursor(document.form1.msg, text_to_insert);
document.form1.message.focus();
}

function hd_insertAtCursor(myField, myValue) {
if (document.selection) {
myField.focus();
sel = document.selection.createRange();
sel.text = myValue;
}
else if (myField.selectionStart || myField.selectionStart == '0') {
var startPos = myField.selectionStart;
var endPos = myField.selectionEnd;
myField.value = myField.value.substring(0, startPos)
+ myValue
+ myField.value.substring(endPos, myField.value.length);
} else {
myField.value += myValue;
}
}

function hd_changeAll() {
d=document.form1;
  for (var i = 0; i < d.elements.length; i++) {
    if(d.elements[i].type == 'checkbox'){
      d.elements[i].checked = !(d.elements[i].checked);
    }
  }
}

function hd_attach_disable(ids) {
 for($i=0;$i<ids.length;$i++) {
      if (ids[$i]=='c11'||ids[$i]=='c21'||ids[$i]=='c31'||ids[$i]=='c41'||ids[$i]=='c51') {
            document.getElementById(ids[$i]).checked=false;
      }
      document.getElementById(ids[$i]).disabled=true;
 }
}

function hd_attach_enable(ids) {
 for($i=0;$i<ids.length;$i++) {
      document.getElementById(ids[$i]).disabled=false;
 }
}

function hd_attach_toggle(control,ids) {
 if (document.getElementById(control).checked) {
     hd_attach_enable(ids);
 } else {
     hd_attach_disable(ids);
 }
}

function hd_help(PAGE,HGT,WDT)
{
 var hdWin = window.open("help_files/"+PAGE,"hd_help","height="+HGT+",width="+WDT+",toolbar=0,status=0,resizable=1,scrollbars=1");
 hdWin.focus();
}

function hd_toggleLayerDisplay(nr) {
	if (document.all)
		document.all[nr].style.display = (document.all[nr].style.display == 'none') ? 'block' : 'none';
	else if (document.getElementById)
		document.getElementById(nr).style.display = (document.getElementById(nr).style.display == 'none') ? 'block' : 'none';
}
